Cooling means for gasolene-engines.



T. J. LOFTUS.

COOLING MEANS FOR GASOLENE ENGINES.

APPLIOATION'IILBD MAY 9,1911.

1,040,709. Patented Oct. 8, 1912.

7700/45 Ila fa s UNITE STATES'PATENTMOFFICE.

'rnomns 'J. towns, or .cns'rnrm, CALIFORNIA; nssreno'n or ONE-HALF 'ro nannon BELL, F OAKLAND, CALIFORNIA.

' COOLING MEANS FOR GASOLENE-ENGHTES,

To all may citizen ofthe United States,'residing at Castella, in the county of Shasta and State of California, have invented new and useful Improvements in Cooling Means for Gasolene-Engines, of which the following'is a specification.

Myinvention relates to means for cooling the cylinders of gasolene engines, and at the same time providing a superheated vapor which will act in unison with the gas and by its expansion increase the effectiveness of the engine;

It consists in the combination of parts and in details of construction, which will be more fully explained by reference to the accompanying'drawings, in which:

Figure 1 is a view of a portion of the apparatus, showingthe plunger .and valve at the normal closed position. Fig. 2 shows the parts at the instant of the explosion within the cylinder.

I have here shown the device as applied to a cylinder, indicated at A, and it consists of a cylinder 2, the inner end of WlllCll may be threaded to screw into the wall of the cylinder at the proper point. It may have ,and which has a valve seat 4: closable against a valve 5; this valve being fixed in position by means of its stem 6 which is ad ustably fixed in the plug 7 in the outer end of the cylinder 2 and bein secured by a lock nut 8. The upper end of t is stem 6 is threaded as shown, so that by turning this stem the valve 5 may be adjusted at will.

Between the top of the plunger 3 and the plug 7 is located a spring 9, which normally acts against the top of the plunger to force it down and cause its seat to close a ainst the valve 5, which is held stationary y its connection with the plug 7. The lower part of the plunger 3 is of greater diameter than the upper portion and reciprocates in a correspondingly larger diameter of its cylinder. Between the top of this enlarged di ameter 3 and the top of the plunger is formed an annular chamber 10 which 13 normally opened by the pressure of the spring which forces the plunger down into contact with the valve as before described.

Specification or Letters Patent. I Application filed Kay 9, 1911. Serial No. 625,984.

Patented Oct. 8, 1912.

'A passage 11 opens into this. chamber '10 and connectswith avalve chaniber-12,.having a 'seat and a check valve 13, which normallycloses upon this seat and controls a assage 14, through which water is admitted" y a suitable connection through the inletat 15. The plunger-being closed against the valve by the action of the spring 9, the

chamber 10 in the larger part of the cylinder above the plunger will be'in a position to receive water through the inlet; and the 010-- sure of the plunger seatagainst the valve 5 makes a tight joint, reventing any leakage of water, compremed air or can then flow through the inlet passages 14 and 11 and fill the annular recess 10.

The engine being in operation, the instant the gases are exploded the pressure generated acts upon theexposed end of the plunger, and forces it outward against the water contained in the recess 10. The water contained in this chamber is thus forced through the passages 16, which lead from the chamber mto the space around the valve which is now opened, and the water willpass into the explosion chamber and will be instantly con verted into su rheated steam,- adding its force to that o the exploded gases. \Vhen the exhaust takes place, the pressure upon the plunger is reduced and the spring 9 then acts to again force the plunger down and close the passages against the seat, allowing a new supply of water to enter the chamber 10. p

The amount of water injected is regulated by the screwing of the valve stem 6 in or out through the plug 7, and this increases or degases. Water heated steam by the heat of the gases ignited; the action being, first, the direct cooling, and second, the additional coollng caused by the expansion into steam.

Having thus described my invention, what I claim and desire to secure by Letters Patent is .1. A device to an omatically inject water into the cylinder of an internal combustion engine, said device including a supplemental cylinder fixed in the engine cylinder and having parts of two diameters, the larger of which is contiguous to the engine cylinder, a

spring pressed plunger with parts of two diameters fitting 'the' supplemental cylinder, passages converging from the junctionuof the parts of two diameters of the plunger to the ottom of the part of larger diameter, a fixed valve against which the plungernormally closes, and avalve controlled water inlet connecting with the cylinder at the junction of its parts of two diameters.

j 2. A. device to automatically inject water into the cylinder of an internal combustion engine, said device comprising a supple-- mental cylinder fixed in the main cylinder, having parts of two diameters, and a closure for the outer end, a valve member located contiguous to the main cylinder and having a stem screw-threadedand adiustable the closure at the outer end, a 11inger fitting the parts of two diameters, red

or the passage of the valve stem and having witnesses.

THOMAS J. LOFTU SL ,W itnesses: FRANK MCCARTY, ALBERT H. SMYTHE. 

